Shuttle spindle



septu 7 9 1,599,291 J. ''lUM/CHE y SHUTTLE SPINDLE Fils@ mmh 1s, 19% 2 sheetsf-shet l b ATroRNEYs WITNESSES iK/dau.,

sept. 7,1926. y 1,599,291

J. scHuMAcHER SHUTTLE SPINDLE Filed March 1e, 1926 2 sheets-sheet 2 INVENTOR ATTORNEYS Patented Sept. 7, 1926.'V

= UNIT-ED STATES] .nimes sonoiunerinn, or UNION crrrY, NEW JERSEY, AssreNon To THE` SCHWARZEN- BACH COMPANY, F UNroN CITY, NEWaEnsEY, n

GQRrQATIoN or NEW JERSEY,

i SHUTTLE SHNDLE.

A .lip'piication mein-archi@ 192e., seriaiimenaz.

This invention relatest'o shuttles for looms and has for an object tok provideA an 41mproved construction wherein the spindle acts to hold inV an efficient vmanner the cop core in place;

Another lobject. of the linvention is toy provide a spindle structure forshuttles wherein an expanding' and Vcont-rac'zting member is provided to .grip and release the lcop core.

JA still .-urtherobject, more specifically, vis

tolprovide a Ispindlev structurefor shuttles wherein the spindle may 'function in the lusual manner but l continually presents an expanding .and contracting member posif tioned to be contracted when the spindle is moved to an outer `position and expanded when moved to aninner position whereby the cop lof the core is gripped when the spindle is in'operating position.

In the accompanying drawing- Figure l is a plan Iview of a shuttle 'with the spindle embodying theinven'tion applied thereto. e v p 4 u,

VFigure 2 is asectional view through F ig ure Lapproximately on line 2 2. Figure 3 is a fragmentary 'view showing one end:l ofthe shuttle illustrated in' Figure'l Y and lillustrating how the spindlemay be swung-to an Vopen position 'and the-copV core holding device con'strieted. e l

Figure 4 Vis a side view lof a 'spindle showing a modiiied form of ,the invention.

Figure- 5`is a plan view of one'end of'a' shuttle withanother form-of the invention applied thereto. r t l Figure 6, is a'sectionall view through Fig-` ure 5, approximately on line 6'-6.

Figure' is' a fragmentarytransverse see-A tionalview through Figure 6 on line 747', the saine being onanenlarged scale.

Figure 8 is anenlarged fragmentary "top vplan view of a cop core holding member embodying `certain features of the invention.

Referringv to the Y accompanying V drawing f by'numerals, lk indicates the us'ual'shuttle which isprovided with a specially (.onstruct-v ed spindle2 for'reeeiving ,thev cop core 3..V

The spindle 2 is'formed lwith anl opening 4 inthe usual manner and is provided spe#V cially'with a stop 5 which may be 'screw threaded into. .part .of thespin'dle as illus-` trated in Figure 2. 'A stop 6 of any desired kind, as for instance, a pin, is provided iat the inner end of the-spindle. The spindle 2`l is pivotally mounted in theusual way and is yquick and easy removal.'`

Ato near thestop 5 as illustrated in Figurej2; AThis tubular tapering threaded memberis of thepin 6 heldinitsouter orvinner Position by a spring 7711i. the usualmanner, Y

jDiIiculty has been had inthe past to maining from near the head 10fofthe spindle2 slippedover the small end of the spindle 2V and by reason of theopening 4, the spindle collapses .enough to permit-'the device 8 to slip over the stop v5 until the vparts are positionedf'as lshown in Figure f2. @It will'be noted that when the tioned in this manner, dentallymove-'o'if the spindle and by reason that the slots 9 are ,arrangedojn top and b'e- `neath the' spindle so that when'the spindle is swung to an open position as showii in Figure 3 and in dotted lines in Figure 2, the in- -ner or large end of member 8 engages thel Vlarge en d of` member 8, said large end will f be forced ltogether by a cam action as the spindleis vmoved to ank open position..y This V will ause'member Sto be Contractedfrom,- .the position show-n in Figure 1i to y'the-'closed pesitions'ho'wn in- Figure.-V When the'parts are in the position showninFigure 3, core 3 is slidjojverthe vspindle vandscrewed down on parts have vbeen posiy member 8 cannot accif `fittingV into one of the slots9.,

the 'device 8 cannot rotate'. Itwill be noted S0 the" locking or holding imei-n1@erv 8l as far as" the'fingersof l,the'operator can do sopcon-v veniently.'` The spindleftogether with! the 'core 3 and the cop thereon, are all then swung back tothe position shown injFigure'l and l Vas soon as this position is taken, member -8 Vi. Y Ywill expand solas to press the threaded portion against-,or into the vcore 3, for Viriinly i 'lgrippin'g vvorlockingthen 'same in place;Y :The 'i cop'` is, therefore,4 lockedl against vr'accideiital "dsloglent "and" the shuttle may beusedj in the' usualmanner until the vcop visentirely unwound whereupon lthe spindle may be moved to the position shown inf FigureB and core 3 removed, after which a new cop may be applied as above described. It is to be noted that the member 8 is tubular and tapers, said tubular structure causing the lower end to act as cams in connection with the arms 11 and 12 whereby the slots `9are readily kclosed automatically as the spindle 2v is swung to its open position.

In Figure 4, a modified structure is shown wherein the YlugY 6 is preferably (formed integral with the head and the substantially annular depression 14 is provided in spindle 2 Vat a point similar to thepoint occupiedv by the stop 5. The ring 15 Vis tittedinto the depression 14 and acts as a stop for member 8 when themodiified form of spindle sho-wn in Figure4 is in use. When this form of the invention is used, the ring 15 is preferably applied after memberS has been placed in position. Y Y Y Figures 5 to 8--inclusive disclose a further form of .the 4invention wherein the pin and ring onthe spindles2 are eliminated and, consequently, the spindles are not weakened in .any manner. In this form of the invention, :the yholding member 16 is provided Vwith a Spiral raised portion 17 and with notches 18l and 1 9 whereby the end is formed linto projections 2O and 21 at one point, said projections beingl adapted to fit partly around the bent down or depending portion 22 of the stop 23.v The stop 23 may be of any desiredy material., as for instance, a round barV fitted intothe member 24 and ertending therefrom as shown in Figurev 6 with the end 22 bent downand projecting through the opening provided by notches 18V and 19. The holder 16 is formed to nor,- mally assume the position shown in Figures 5 and 8 with the slit 25 open. when the parts open as just'described, ends 2O and 21 will still overlap the depending portion or end 22 and, consequently, holder lrcannot be removed. When it is desired` to-remove the holder 16,1a screw driver or f' other instrument is inserted into slit 25 and the parts spread to a greater extent-or until the ends 20 and 21 may pass the end 22 of stop 23. It willKV be noted that theliolderl` is freely slidable on the spindle 2 but is held against sliding movement by the ends 2O j and 21and also is prevented from independent rotation as the depending end portion 22 will strike 4the holder 16 in the notches 18 and19. y.

VWhen itis desired to remove the Vcore 5, the p arts are raised from the position shown in Figure y5 vuntil therarms 11 and 12 strike the outsidel'surface of thev largev end ofl holder 16 and act as' cams for forcing the slit 15 closed., It will be noted that the arms 11 and 12 engage the holder 16 substantially at pointsy 2,6 and 27 and substantiallyclose However, Y

tation.

stantially usual structure, a plate formedV with a` pair ofarms acting as cams, a spindle pivota-lly mounted in ,the body and,

swingable so that it may be swung to a position extending between said arms, and a collapsible and distensible cop holding rmeniber mounted on the spindle and positioned with one end vnear the pivotal end of the spindle and positioned to be engaged by said arms and constricted thereby when the spindle is moved to an'outer position.-V

2. 1n a loom a spindle, a copholding device mounted on the spindle,"said cop holding device being formedwitha. slot merging into notches, and a hook carried by the spindleformed with a depending portion projecting Vinto said notches and interlocking somewhat with the holding device whereby the Vhook prevents the independent rotation ofthe cop holding device and independent longitudinal movement thereof.

3. A shuttle comprising a bodyl of substantially the usual structure, a plate formed with a pair of arms acting as cams, a spindle pivotally mounted vin the body and swingable so that it maybe swung to a position extending lbetween said arms, a. collapsible vand distensiblecop holding mem- -ber mounted on the spindle and positioned with one end near the pivotal end ofthe spindle Vand positioned to be engaged by said arms and constricted thereby Vwhen the spindle is moved to an outer position, said.

cop holding member being formed with a notch, and a hook connected to said spindle with one end projecting into said notch for lockingzthe cop holding member against rosoY llO

4. In a loom shuttle a spindle, a cop hold- 'i ing device mountedv on the spindle and split from near the pivotal pointV of the spindle Y f to vnear the opposite'end ofthe holding device, said holding device also being provided with facingV notches merging into the splitl portion, means associated with the,

spindle for contracting the cop holding devicewhen-tlie spindle has beenmoved to an outer position, anda hook carried by the spindle formedwith an extension projectingA into saidnotchf JULIUS SOHUMACHER. 

